Endoscopy 2018; 50(04): S33
DOI: 10.1055/s-0038-1637124
ESGE Days 2018 oral presentations
20.04.2018 – Digestive tract strictures: dilation, stenting
Georg Thieme Verlag KG Stuttgart · New York

NEW DESIGN DOUBLE BARE OR DOUBLE COVERED STENTS FOR MALIGNANT COLORECTAL OBSTRUCTION: COMPARATIVE, PROSPECTIVE, PANDOMIZED, SINGLE CENTRE TRIAL

A Vodoleev
1   RUDN University, Endoscopy, Endoscopical and Laser Surgery, Moscow, Russian Federation
2   Eramishanzev Clinical Hospital, Moscow, Russian Federation
,
V Duvanskiy
1   RUDN University, Endoscopy, Endoscopical and Laser Surgery, Moscow, Russian Federation
,
D Kryazhev
2   Eramishanzev Clinical Hospital, Moscow, Russian Federation
› Author Affiliations
Further Information

Publication History

Publication Date:
27 March 2018 (online)

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Aims:

Endoscopic stenting for malignant colonic obstruction has advantages and disadvantages. One of the actual problems associated with colorectal stenting is the recurrence of symptoms of obstruction. The most common cause is migration of covered stents and ingrown of uncovered stents. The aim of our study was to compare the results of the use of stents of a new design.

Methods:

Between December 2012 and September 2017, 100 patients with colonic malignant obstruction were implanted 101 stents (52 bare, 49 covered EGIS Colorectal stent, S&G Biotech Inc., South Korea). Groups of patients using coated and uncovered stents were comparable in terms of sex, age, duration of symptoms of obstruction, and stenosis localization. In 67% patients was palliative care, 33% – bridge to surgery.

Results:

Results. Clinical success was achieved in 97% patients. In 2 patients with covered and 1 patient with bare stent, the symptoms of obstruction could not be regressed, the patients were operated. The average stay in hospital after the intervention was 3 days; the difference between the groups was statistically insignificant. 30 day mortality was 6%, the difference was statistically insignificant. Complications were detected in 5 patients in the group of bare stents and in 1 patient in the group of covered stents, the difference was statistically insignificant. In three cases perforation was diagnosed: after 3, 18, 77 hours after stenting (all bare stents). In 3% patients were identified the occlusion of the stents after 34, 83, 165 days after stenting. The causes of occlusion were tumor ingrown, fecal mass and fiber occlusion (uncovered stents) and stent overgrown (covered stent). The difference in cumulative stent patency and overall survival between groups is not statistically significant.

Conclusions:

Double bare and double covered colorectal stents were feasibility and efficacy for relieving malignant colorectal obstruction. Reobstruction was rare complication and not different in both groups stent groups.